Tracking Follower
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Tracking Follower is a feature exclusive to primitive objects, video screens, and imported 3D objects. It allows you to visualize the location of environment trackers through the responsive movement of the chosen Viewport Object.
To apply the transformation of incoming tracking device data to an Object, all you have to do is follow three simple steps:
Insert an Object onto the Viewport,
choose a Tracking device,
place at least three different Tracking points on the Object, and
assign the Trackers to the Tracking points.
In the Viewport window, choose a Primitive object, Video Screen, or imported 3D Object from the Toolbar and drag it to the desired spot on the Viewport floor.
In reality, here, you will want to place the virtual twin of the physical 3D Object you will be tracking.
In Tracker device dropdown menu you can choose one of the Device receiver nodes placed in the Devices window.
Next, you need to choose at least three different points on the virtual Object that match the position of the physical Trackers, in relation to the physical 3D Object.
To do so, under the Tracking follower section click on Add point button. Upon clicking, you will enter a special mode, indicated by the Pick a point label on the top left corner of the Viewport window.
If Render spheres checkbox is enabled, anytime you hover over the chosen object, a sphere will be drawn out.
To add a point to the object, all you have to do is click on it.
Under the Tracker column, enter the name of the physical tracker for each corresponding point.
Once you enable the Apply transformation override checkbox, the virtual Object will jump to the position in the Viewport that matches the position of the physical Object in your tracking environment.
